the middle. Apex bifid, each division minutely two-toothed by prolonga- 

 tion of the lateral nerves. Awn ascending from near the middle of the 

 glumes on the back, 4-4.5 mm. long, rather stout below, geniculate and 

 projecting beyond the glumes. 



While these plants are very much smaller than Agrostis virescens H. B. K. , the 

 differences are in the vegetative rather than in the essential characters. 

 A. virescens in the typical form is 20-54 cm. high, with a more open panicle, 

 longer and broader leaves, but the spikelet characters of the variety here 

 noted, are so closely identical with those of the species that the plant can 

 not be regarded as representing anything more than a variety. Specimens 

 here described have the appearance of being annuals or seedlings, and this 

 may account for their diminutive size. 



AGROSTIS DAVYI Scribn. sp. nov. 



A rather slender, erect, or ascending perennial, 6-9 dm. high, with narrow, 

 scabrous leaves and loosely flowered, narrow panicles 1-2 dm. long. Culms 

 and sheaths scabrous, ligule about 10 mm. long, hyaline, scabrous on the 

 back, at least below, decurrent. Leaf -blades 8-18 cm. long, 3-6 mm. wide, 

 scabrous on both sides. Spikelets 3.5-4 mm. long, outer glumes lanceolate, 

 acuminate, very acute, scabrous on the back, especially along the keel, 

 nearly equal; flowering glumes about 3 mm. long, oblong, trimcate, 

 5-nerved, lateral nerves projecting as very short teeth or setae, the mid- 

 nerve usually excurrent at or above the middle as a short, slender, incon- 

 spicuous bristle. Callus hairy on the sides, the hairs 1-1.5 mm. long. 



In brush on hillsides near Point Arena, Mendocino Coimty, Cal., No. 6062 Davy 

 and Blasdale. May-August, 1899. 



The spikelets of this species closely resemble those of Agrostis pringlei Scribn. , 

 and this resemblance is carried to the remarkably long calhis hairs, liut in 

 other respects the species are very distinct. The culms in Agrostis davyi 

 are simple, and much taller, and the panicles longer and more loosely 

 flowered. 



STIPA LEMMONI (Vasey) Scribn. n. comb. {Stipa pringlei var. lemmoni 

 Vasey, Contr. U. S. Nat. Herb. 3:55. 1892). Near Harris, Humboldt 

 County, Cal., No. 5348, Davy and Blasdale; dry rocky slopes. Long Valley, 

 No. 5287, Davy and Blasdale. 



A rather slender, rigid perennial 4-6 dm. high, with narrow, involute leaves and 

 strict, few-flowered panicles 10-12 cm. long. Culms glabrous ; sheaths stri- 

 ate, glabrous, shorter than the internodes. Ligule 1.5 mm. long, roiinded- 

 obtuse, entire, decurrent. Leaves 2-3 mm. wide, 5-10 cm. long (those of 

 the innovations longer and narrower), glabrous beneath, pubescent and 

 strongly striate above, closely involute when dry, divergent at the apex. 

 Panicle branches erect, the longer lower ones in twos and threes, 2-3 cm. 

 long, few-flowered. Spikelets rather large and pale green or straw-colored ; 

 empty glumes nearly ecpial, about 12 mm. long, broadly lanceolate, long 

 acuminate-pointed, 3-5-nerved, scarious excepting the nerves; flowering 

 glume oblong, about 7 mm. long, obtuse, 2-toothed at the oblong apex, thinly 

 pilose all over with appressed hairs. Callus broadly obtuse, shortly bearded. 

 Palea broad, nearly as long as the glume, and similarly hairy. Anthers naked. 



This grass has been referred to Stipa viridula, but it is very distinct from that 

 species in its larger spikelets, longer palea, fewer-flowered panicles, fewer, 

 shorter, and narrower leaves. In addition to the above-cited specimens, this 

 species is represented in the National Herbarium by specimens from West 

 Klickitat County, Columbia River, Washington, No. 146, W. N. Suksdorf, 

 May 16, 1885, and the type No. 5456, J. G. Lemmon, Mohawk Valley, Plumas 

 County, Cal., May, 1889. 



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